U6813B ATMEL Corporation, U6813B Datasheet - Page 12

• Manufacturer Part Number: U6813B
• Description: U6813b Fail-safe Ic With High-side And Relay Driver
• Manufacturer: ATMEL Corporation

8. Protection Versus Transient Voltages According to ISO TR 7637-1 Level 4
9. Timing Diagrams
12
Note:
(Except Pulse 5)
Pulse
3a
3b
1
2
5
1. In the case of the relay driver, the coil resistance of R
U6813B
Voltage
–110V
+110V
–160V
+150V
Figure 9-1.
55V
Watchdog in Too-fast Condition
Source Resistance
FETO
WDI
RELO
P-EN
N-EN
V
V
5 V
0 V
0 V
0 V
5 V
0 V
5 V
0 V
Batt
Batt
10
10
50
50
2
Normal operation
(1)
min
= 150 has to be added to the source resistance.
WDI too fast
Rise Time
10V/ms
100V/s
100V/s
30V/ns
20V/ns
Normal operation
Duration
0.05 ms
250 ms
0.1 µs
0.1 µs
2 ms
Don't care
4543B–AUTO–10/05
Amount
14195
15.000
15.000
1h
1h
20